RAID6-2017: Unterschied zwischen den Versionen

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  [Mon Oct 21 19:51:01 2019] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
  [Mon Oct 21 19:51:01 2019] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
  [Mon Oct 21 19:51:01 2019] md: using 128k window, over a total of 1953382400k.
  [Mon Oct 21 19:51:01 2019] md: using 128k window, over a total of 1953382400k.
  SysFS Device Link: /devices/pci0000:00/0000:00:17.0/ata3/host2/target2:0:0/2:0:0:0
  SysFS Device Link: /devices/pci0000:00/0000:00:17.0/ata4/host3/target3:0:0/3:0:0:0
  SysFS Device Link: /devices/pci0000:00/0000:00:01.1/0000:02:00.0/ata7/host6/target6:0:0/6:0:0:0
  SysFS Device Link: /devices/pci0000:00/0000:00:01.1/0000:02:00.0/ata9/host8/target8:0:0/8:0:0:0
  SysFS Device Link: /devices/pci0000:00/0000:00:01.1/0000:02:00.0/ata10/host9/target9:0:0/9:0:0:0

Version vom 21. Oktober 2019, 22:42 Uhr

  • host "server"
  • Raid-6 aus 5+1 2TB Partitionen (1x3TB Platte und 5x2TB Platten)
  • erstellt am "Wed Jan 28 22:47:57 2015"
  • 4x 512 GByte im RAID 6 migriert auf
  • 4x 2 TB im RAID 6 (-> 4 TB) migriert auf
  • 5x 2 TB im RAID 6 (-> 6 TB)

Maximum

  • Maximaler Vollausbau (da 32 Bit-ext4):
  • 7x 3 TB im RAID 6 (-> 15 TB)

RAID-Platten

1 ; 2         ; 3      ; 4   ; 5                ; 6
0 ; /dev/sdd1 ; 01.1-7 ; 2TB ; ST2000VX004-1RU1 ; Z4Z1NATB
1 ; /dev/sde1 ; 01.1-9 ; 2TB ; WD20EFRX-68E     ; WD-WCC4M1ZJ8ZKZ
1 ; /dev/sdf1 ;        ; 2TB ; WD20PURX-64P     ; WD-WCC4M0XEZ7CH   (B2) 
2 ; /dev/sdb1 ; 17.0-4 ; 2TB ; ST2000VX004-1RU1 ; Z4Z1NB4W
3 ; /dev/sda1 ; 17.0-3 ; 2TB ; WD20EFRX-68E     ; WD-WCC4M5ZDK1AE
4 ; /dev/sdc1 ; 17.0-5 ; 3TB ; TOSHIBA DT01ACA3 ; 554468NGS



1 = RaidDevice
2 = Linux Partition Name
3 = SATA Connector
4 = Capacity
5 = Model
6 = Serial

Unused-Platten

TOSHIBA DT01ACA3   5544688GS         (A3) sdd

Details

Dateisystem

  • ext4 (ohne 64 Bit!)

Festplatten-Positionen

  • A1|A2|A3|A4|B1|B2|B3|B4 (Bay-Bezeichnungen von Links nach Rechts)
     Kabel serial           /dev/disk/by-id/                             RAID-Rolle device
A1 1 rot   WD-WCC4M1ZJ8ZKZ  "ata-WDC_WD20EFRX-68EUZN0_WD-WCC4M1ZJ8ZKZ"   1          sdg
A2 2 rot   Z4Z1NATB         "ata-ST2000VX004-1RU164_Z4Z1NATB"            0          sde
A2 2 rot   -- leer --
A3 3 gelb  5544688GS        "ata-TOSHIBA_DT01ACA300_5544688GS"           Spare      sdd
A4 4 rot   554468NGS        "ata-TOSHIBA_DT01ACA300_554468NGS"           4          sdc
B1 5 rot   Z4Z1NB4W         "ata-ST2000VX004-1RU164_Z4Z1NB4W"            2          sdb
B2 6 gelb  WD-WCC4M0XEZ7CH  "ata-WDC_WD20PURX-64P6ZY0_WD-WCC4M0XEZ7CH"   0          sdf
B3 7 rot   WD-WCC4M5ZDK1AE  "ata-WDC_WD20EFRX-68EUZN0_WD-WCC4M5ZDK1AE"   3          sda
B4 8 rot   -- leer --

A1

A2

A3

A4

B1

B2

B3

B4




defekt



Details

/dev/md127:
       Version : 1.2
 Creation Time : Wed Jan 28 22:47:57 2015
    Raid Level : raid6
    Array Size : 5860147200 (5588.67 GiB 6000.79 GB)
 Used Dev Size : 1953382400 (1862.89 GiB 2000.26 GB)
  Raid Devices : 5
 Total Devices : 7
   Persistence : Superblock is persistent

 Intent Bitmap : Internal

   Update Time : Tue Oct 16 13:08:39 2018
         State : clean
Active Devices : 5
Wrking Devices : 7
Failed Devices : 0
 Spare Devices : 2

        Layout : left-symmetric
    Chunk Size : 512K

          Name : raib23:0
          UUID : a9b9721a:7da8602e:313975c3:10fa337e
        Events : 13372

   Number   Major   Minor   RaidDevice State
      5       8       65        0      active sync   /dev/sde1
      6       8       97        1      active sync   /dev/sdg1
      4       8       17        2      active sync   /dev/sdb1
      7       8        1        3      active sync   /dev/sda1
      8       8       33        4      active sync   /dev/sdc1

      9       8       81        -      spare   /dev/sdf1
     10       8       49        -      spare   /dev/sdd1

Ereignisse

26.07.2019 Ausfall von "sde"

[9159727.049398] md/raid:md127: Disk failure on sde1, disabling device.
                 md/raid:md127: Operation continuing on 4 devices.
  • AUTOMATISCH wurde "sdf" vom "spare" zum Verband hinzugefügt
[9159732.583652] md: recovery of RAID array md127
[9186393.380680] md: md127: recovery done.
[9186394.116871] RAID conf printout:
[9186394.116878]  --- level:6 rd:5 wd:5
[9186394.116881]  disk 0, o:1, dev:sdf1
[9186394.116884]  disk 1, o:1, dev:sdg1
[9186394.116886]  disk 2, o:1, dev:sdb1
[9186394.116888]  disk 3, o:1, dev:sda1
[9186394.116890]  disk 4, o:1, dev:sdc1
  • nunmehr bot sich folgendes Bild
   Number   Major   Minor   RaidDevice State
      9       8       81        0      active sync   /dev/sdf1
      6       8       97        1      active sync   /dev/sdg1
      4       8       17        2      active sync   /dev/sdb1
      7       8        1        3      active sync   /dev/sda1
      8       8       33        4      active sync   /dev/sdc1

      5       8       65        -      faulty   /dev/sde1
     10       8       49        -      spare   /dev/sdd1
  • nach einem remove der faulty Platte
   Number   Major   Minor   RaidDevice State
      9       8       81        0      active sync   /dev/sdf1
      6       8       97        1      active sync   /dev/sdg1
      4       8       17        2      active sync   /dev/sdb1
      7       8        1        3      active sync   /dev/sda1
      8       8       33        4      active sync   /dev/sdc1

     10       8       49        -      spare   /dev/sdd1


21.10.2019 Ausfall von sdc

  • Heute Abend waren die Shares plötzlich unendlich langsam
  • Teilweise waren sogar die Shares "offline"
  • Im Serverraum dann folgendes Bild: eine LED einer Platte war dauerhaft an, also wie unter Dauerfeuer
  • Das HDD LED des Boards war auch auf Dauerbetrieb ohne Flackern, also irgendwas schlimm im argen
  • Ich habe die "schuldige" Platte einfach rausgezogen, danach wurde das Spare in den Verbund aufgenommen
  • Es erfolgte der Weiterbetrieb störungsfrei und das Recovery mit Hilfe des Spares
[Mon Oct 21 19:50:35 2019] ata5.00: exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen
[Mon Oct 21 19:50:35 2019] ata5.00: irq_stat 0x00400040, connection status changed
[Mon Oct 21 19:50:35 2019] ata5: SError: { HostInt PHYRdyChg 10B8B DevExch }
[Mon Oct 21 19:50:35 2019] ata5.00: failed command: READ DMA EXT
[Mon Oct 21 19:50:35 2019] ata5.00: cmd 25/00:08:f0:4f:fa/00:00:43:00:00/e0 tag 26 dma 4096 in
                                    res 50/00:00:ef:4f:fa/00:00:43:00:00/e3 Emask 0x50 (ATA bus error)
[Mon Oct 21 19:50:35 2019] ata5.00: status: { DRDY }
[Mon Oct 21 19:50:35 2019] ata5: hard resetting link
[Mon Oct 21 19:50:36 2019] ata5: SATA link down (SStatus 0 SControl 310)
[Mon Oct 21 19:50:41 2019] ata5: hard resetting link
[Mon Oct 21 19:50:41 2019] ata5: SATA link down (SStatus 0 SControl 310)
[Mon Oct 21 19:50:46 2019] ata5: hard resetting link
[Mon Oct 21 19:50:47 2019] ata5: SATA link down (SStatus 0 SControl 310)
[Mon Oct 21 19:50:47 2019] ata5.00: disabled
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] tag#26 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] tag#26 Sense Key : Illegal Request [current]
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] tag#26 Add. Sense: Unaligned write command
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] tag#26 CDB: Read(16) 88 00 00 00 00 00 43 fa 4f f0 00 00 00 08 00 00
[Mon Oct 21 19:50:47 2019] blk_update_request: I/O error, dev sdc, sector 1140477936
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: rejecting I/O to offline device
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] killing request
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: rejecting I/O to offline device
... 
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: rejecting I/O to offline device
[Mon Oct 21 19:50:47 2019] ata5: EH complete
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] FAILED Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] CDB: Read(16) 88 00 00 00 00 00 43 fa 4f f8 00 00 00 08 00 00
[Mon Oct 21 19:50:47 2019] blk_update_request: I/O error, dev sdc, sector 1140477944
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: rejecting I/O to offline device
[Mon Oct 21 19:50:47 2019] ata5.00: detaching (SCSI 4:0:0:0)
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] Stopping disk
[Mon Oct 21 19:50:47 2019] sd 4:0:0:0: [sdc] Start/Stop Unit failed: Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[Mon Oct 21 19:50:51 2019] md/raid:md127: Disk failure on sdc1, disabling device.
                           md/raid:md127: Operation continuing on 4 devices.
[Mon Oct 21 19:51:01 2019] RAID conf printout:
[Mon Oct 21 19:51:01 2019]  --- level:6 rd:5 wd:4
[Mon Oct 21 19:51:01 2019]  disk 0, o:1, dev:sde1
[Mon Oct 21 19:51:01 2019]  disk 1, o:1, dev:sdf1
[Mon Oct 21 19:51:01 2019]  disk 2, o:1, dev:sdb1
[Mon Oct 21 19:51:01 2019]  disk 3, o:1, dev:sda1
[Mon Oct 21 19:51:01 2019]  disk 4, o:0, dev:sdc1
[Mon Oct 21 19:51:01 2019] RAID conf printout:
[Mon Oct 21 19:51:01 2019]  --- level:6 rd:5 wd:4
[Mon Oct 21 19:51:01 2019]  disk 0, o:1, dev:sde1
[Mon Oct 21 19:51:01 2019]  disk 1, o:1, dev:sdf1
[Mon Oct 21 19:51:01 2019]  disk 2, o:1, dev:sdb1
[Mon Oct 21 19:51:01 2019]  disk 3, o:1, dev:sda1
[Mon Oct 21 19:51:01 2019] RAID conf printout:
[Mon Oct 21 19:51:01 2019]  --- level:6 rd:5 wd:4
[Mon Oct 21 19:51:01 2019]  disk 0, o:1, dev:sde1
[Mon Oct 21 19:51:01 2019]  disk 1, o:1, dev:sdf1
[Mon Oct 21 19:51:01 2019]  disk 2, o:1, dev:sdb1
[Mon Oct 21 19:51:01 2019]  disk 3, o:1, dev:sda1
[Mon Oct 21 19:51:01 2019]  disk 4, o:1, dev:sdd1
[Mon Oct 21 19:51:01 2019] md: unbind<sdc1>
[Mon Oct 21 19:51:01 2019] md: export_rdev(sdc1)
[Mon Oct 21 19:51:01 2019] md: recovery of RAID array md127
[Mon Oct 21 19:51:01 2019] md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
[Mon Oct 21 19:51:01 2019] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
[Mon Oct 21 19:51:01 2019] md: using 128k window, over a total of 1953382400k.

 SysFS Device Link: /devices/pci0000:00/0000:00:17.0/ata3/host2/target2:0:0/2:0:0:0
 SysFS Device Link: /devices/pci0000:00/0000:00:17.0/ata4/host3/target3:0:0/3:0:0:0
 SysFS Device Link: /devices/pci0000:00/0000:00:01.1/0000:02:00.0/ata7/host6/target6:0:0/6:0:0:0
 SysFS Device Link: /devices/pci0000:00/0000:00:01.1/0000:02:00.0/ata9/host8/target8:0:0/8:0:0:0
 SysFS Device Link: /devices/pci0000:00/0000:00:01.1/0000:02:00.0/ata10/host9/target9:0:0/9:0:0:0
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